Protocol analyzer



FIG. 1 is a perspective view of a protocol analyzer showing our new design with the keyboard exposed;

FIG. 2 is a top plan view thereof on an enlarged scale;

FIG. 3 is a front elevational view thereof on an enlarged scale;

FIG. 4 is a bottom plan view thereof on an enlarged scale;

FIG. 5 is a rear elevational view thereof on an enlarged scale;

FIG. 6 is a side elevational view thereof on an enlarged scale;

FIG. 7 is an opposite side elevational view thereof on an enlarged scale; and

FIG. 8 is a perspective view thereof with the keyboard closed. 

The ornamental design for a protocol analyzer, substantially as shown and described. 